列车车辆设备安装的过渡件结构优化和应用  

Structural optimization and application of attachments installed on railway vehicle equipment

作　　者：李根国[1] 范怀良[1] 丁峻宏[1] 

机构地区：[1]上海超级计算中心,上海201203

出　　处：《计算机辅助工程》2014年第3期54-59,共6页Computer Aided Engineering

基　　金：国家高技术研究发展计划("八六三"计划)重点项目(2012AA01A308)

摘　　要：对某型号列车车辆下部设备安装的过渡件进行结构分析,发现结构强度冗余较大.为提高材料使用率,减小列车整车整备质量,开展结构轻量化设计研究并提出改进措施.对常用底架设备安装方式进行有限元分析,利用OptiStruct对过渡件进行拓扑优化.根据材料工艺成型特点和结构安全要求对结构进行重新设计,并对新结构进行形状优化,获得最佳优化效果的结构设计方案.It is found that there is large structural strength redundancy according to the analysis on the equipment installation attachments below the underframe of a certain type of railway vehicle. In order to improve material utilization and reduce the complete curb mass of train, the structural lightweight design is researched and the improvement measures are proposed. The finite element analysis is performed on the common equipment installation pattern and the topology optimization is performed on the attachments by OptiStruct. The structure is redesigned according to the materials forming characteristics and structural safety requirements, and finally the optimal structure design scheme is obtained by the shape optimization on the new structure.

关 键 词：过渡件 轻量化 拓扑优化 形状优化 OptiStruct 

分 类 号：U270.3[机械工程—车辆工程]